E-cigarettes, which produce vapor instead of smoke, are supposed to be a safer nicotine option. But the product is completely unregulated by the federal government, and there’s been little research on its long-term effects. The industry, too, faces uncertainty, as small companies fear big tobacco will put them out of business. Special correspondent John Larson reports.
Read the transcript: http://www.pbs.org/newshour/bb/vaping-save-smokers-create-new-nicotine-addicts/#transcript